Interconnect apparatus for fuel cells
View Patent ↗A fuel delivery system for a fuel cell ( 400 ) includes a substrate ( 404 ) having a cavity ( 402 ) formed therein, an o-ring ( 408 ) embedded within the cavity, and a detachable tube ( 410 ) inserted though and retained within the o-ring. The tube ( 408 ), when inserted through the o-ring ( 408 ), forces the o-ring to expand and fill the cavity ( 402 ) thereby forming a liquid tight seal for the transfer of liquid ( 414 ) to a fuel cell chamber ( 416 ).
1. A delivery system for delivering a liquid or a gas, comprising:
a device for transporting the liquid or gas therethrough;
an o-ring;
a substrate defining
a surface having a first portion and a second portion;
a chamber;
a first channel with a first opening in the first portion of the surface for receiving the device, and a second opening leading to the chamber, and
a second channel with a third opening in the second portion of the surface and spaced apart from the first opening for receiving and passing the o-ring through the second channel to a cavity formed around the first channel;
wherein the o-ring has a dimension larger than the first channel so that the o-ring will not pass through the first channel and wherein the o-ring, having the device contactually inserted therethrough, will prevent the liquid or gas from passing from the chamber to either of the first opening, other than through the device, and the third opening.